Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4317414 | Sea-bottom mine | Helmut Grawe | 1982-03-02 |
| 4281427 | Warning and signalling device, especially for maritime purposes | — | 1981-08-04 |
| 4267147 | Method for producing fiber reinforced structure components | Dieter Pogoda, Arno Rost | 1981-05-12 |